genuary16 ,18 and 19 - strangely attracted to this puddle

let a, b, c, d;
let oldx, oldy;
let dA = [];
let n = 1500;
let t = 0;
let playBool = true;
function setup() {
  dA = [];
  createCanvas(500, 500);
  background(20);
  oldx = random(50);
  oldy = random(50);
  a = random(-5, 5);
  b = random(-3, 3);
  c = random(-5, 5);
  d = random(-3, 3);
  background(0);
  strokeWeight(1);

  angleMode(DEGREES);
  noStroke();
  for (let i = 0; i < n; i++) {
    dA.push(new Points(oldx, oldy));
    oldx = dA[i].x + random(-5, 5);
    oldy = dA[i].y + random(-5, 5);
  }
}
function draw() {
  if (!playBool) {
    frameCount--;
  }
  t = frameCount / 2;
  background(0, 0, 0, 10);
  translate(width / 2, height / 2);
  rotate(t / 2);
  for (let i = 0; i < n; i++) {
    dA[i].display();
  }
}

function mousePressed() {
  setup();
  draw();
}

class Points {
  constructor(oldx, oldy) {
    this.x =
      (width / 8) * sin(a * oldx) * sin(b * oldy + 90) +
      (width / 8) * sin(d * oldx + 90) * sin(a * oldy);
    this.y = (height / 4) * sin(oldy) * cos(oldx);
    this.oldx = oldx;
    this.oldy = oldy;
    this.ts = random(0.9, 1);
    this.c = color(100 + 105 * abs(sin(this.x)));
    this.c.setAlpha(100);
  }
  display() {
    let th = this.ts * t;
    this.x =
      (width / 8) * sin(a * this.oldx) * sin(b * this.oldy + 90 + th) +
      (width / 8) * sin(d * this.oldx + 90 + th) * sin(a * this.oldy + th);
    this.y = (height / 4) * sin(this.oldy + th) * cos(this.oldx + th);
    this.c = color(
      100 + 105 * sin(this.x + this.x * this.y * sin(t / 2) + this.y)
    );
    this.c.setAlpha(100);
    stroke(this.c);
    point(-width / 4 + this.x, -height / 4 + this.y);
    this.c.setAlpha(50 * sin(th));
    stroke(this.c);
    push();
    scale(0.5);
    point(this.x, this.y);
    pop();
    push();
    this.c.setAlpha(100);
    stroke(this.c);
    scale(-1, 1);
    point(-width / 4 + this.x, -height / 4 + this.y);
    this.c.setAlpha(50 * sin(th));
    stroke(this.c);
    push();
    scale(0.5);
    point(this.x, this.y);
    pop();
    pop();
    push();
    this.c.setAlpha(100);
    stroke(this.c);
    scale(-1, -1);
    point(-width / 4 + this.x, -height / 4 + this.y);
    this.c.setAlpha(50 * sin(th));
    stroke(this.c);
    push();
    scale(0.5);
    point(this.x, this.y);
    pop();
    pop();
    push();
    this.c.setAlpha(100);
    stroke(this.c);
    scale(1, -1);
    point(-width / 4 + this.x, -height / 4 + this.y);
    this.c.setAlpha(50 * sin(th));
    stroke(this.c);
    push();
    scale(0.5);
    point(this.x, this.y);
    pop();
    pop();
  }
}

function keyPressed() {
  playBool = !playBool;
}